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1. Results of fish stock assessment survey, South Georgia, December 1987 - January 1988

   Abstract / Description:  Commercial fish stocks around South Georgia have been declining since the early ... other species showed either an increase in mean size with depth or no apparent change (Table 3 ... Commercial fish stocks around South Georgia have been declining since the early 1970's. A survey to monitor ... stocks have been declining since the late 1970's (Kock 1985,1986; Gabriel 1987). In the early 1970's the ... tows (at 3.5 Knots) were made by the R.V. Professor Siedlecki using a P32/36 otter trawl equipped with ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/5 – Part II (Selected Scientific Papers, SC-CAMLR-SSP/5 – Part II) : 19-52 : Auteur(s): McKenna, Jr., J.E. and S.B. Saila

2. Towards an initial operational management procedure for the krill fishery in Subareas 48.1, 48.2 and 48.3

   year period, with a reference CPUE level (CPUE ref) calculated as the average CPUE over that time ... year, depending on how many of the previous three years' CPUE values fall below a target level of ... prevent the expected lowest biomass of krill over a 20-year harvesting period from falling below 60% of ... -year period considered. Simulation tests, including one particular test of robustness to the ... . Annual TACs are restricted to an initial ceiling (Cc) for a five year period, with a reference CPUE ... ) Average annual catch over 20 years: Cav (objective n.). (ii) Catch in twentieth year: C20• 197 ... the management procedure. TAC in year y. Average annual catch over the first 20 years of operation ... % per annum. However, this increase may be suspended or reversed in any year, depending on how many of ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 189–219 : Auteur(s): Butterworth, D.S.

3. Characteristics of krill aggregations in the South Sandwich Islands subarea in January–February 2000

   patterns of krill aggregations and distribution of krill biomass density were analysed with a view to ... density was greater than 1.5 g m-3. The biomass in these potential fishing grounds amounted to about 1.7 ... not exceed 0.02 g m-3. Krill swarms were recorded in the upper 80 m depth layer. Sites with ... aggregations and distribution of krill biomass density were analysed with a view to detecting potential fi ... spatial distribution of krill aggregations within the whole of Area 48. This paper deals with analyses ... area within two zones, with average biomass densities of 252.1 g m-2 and 56.0 g m-2 (Table 2). These ...

   Science Journal Paper : CCAMLR Science, Volume 9 (CCAMLR Science, Volume 9) : 145–164 : Auteur(s): Kasatkina, S.M., A.P. Malyshko, V.N. Shnar and O.A. Berezhinsky

4. Analysis and modelling of the Soviet Southern Ocean krill fleet, II: Estimating the number of concentrations and analytical justification for search data

   . Sample computations are performed, using data collected by Soviet research/survey vessels in the early ... collected by Soviet research/survey vessels in the early 1980s. These examples highlight the need for a ... ). They were not collected with the intent of this estimation, so that additional assumptions are needed ... be skewed, with a long tail, rather than uniform as assumed previously. The difficulty in drawing a ... information is needed. That figure shows two foci for fishing krill with a gap between them. Without echo ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/6 (Selected Scientific Papers, SC-CAMLR-SSP/6) : 283–322 : Auteur(s): Mangel, M.

5. Analysis of variability of krill size and fish by-catch in the Japanese krill fishery based on scientific observer data

   Bayesian model. The models were composed of multistage cluster units (i.e. year, subarea, vessel, cruise ... , subareas and vessels. The potent interaction effect between year and subarea suggests large spatio–temporal ... datasets were calculated by the multistage sampling formula with the variance terms derived from the ... parameters estimated by the Markov chain Monte Carlo (MCMC) method hardly show difference among years ... year i was assumed to follow a normal distribution with the haul mean length ijklY and the variance ... hardly show difference among years, subareas and vessels. The potent interaction effect between year and ... distribution with nested cluster sampling units showing approx- imately good fit overall (Figure 3). Temporal ... Vessel Vessel 1 Vessel 2 Vessel 3 Vessel 4 Year 1995 1997 ...

   Science Journal Paper : CCAMLR Science, Volume 19 (CCAMLR Science, Volume 19) : 31–47 : Auteur(s): Okuda, T. and M. Kiyota

6. Preliminary results of a bottom trawl survey around Elephant Island in October and December 1987

   differed significantly from that in previous seasons which argues for an exchange with C. gunnari from ... interactions with the environment and their trophic links with plankton and benthos. In the first years (1975 ... previous seasons which argues for an exchange with C. gunnari from other shelf areas of the Peninsula ... out by RV Polarstern using a 140' bottom trawl with a small meshed liner of 20 mm. Sampling depth ... Polarfuchs on 12 December 1987 using a 4 m beam trawl with a mesh size of 10 mm. Fishing depth varied from ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/5 – Part II (Selected Scientific Papers, SC-CAMLR-SSP/5 – Part II) : 185-200 : Auteur(s): Kock, K.-H.

7. A generalised model for evaluating yield and the long-term status of fish stocks under conditions of uncertainty

   the spawning stock biomass in accordance with CCAMLR criteria. These specify a bound on the ... from the model are compared with existing analyses from the krill yield model. The model can include a ... SB.0 Projection of known catches SB.current Projection with fixed catch roject stock one year ... age classes in the stock, with recruitment varying from year to year as specified in the recruitment ... account in the period before the - forward projection. For each year with known 'nzin < pdepSO (16 ... the spawning stock biomass in accordance with CCAMLR criteria. These specify a bound on the ...

   Science Journal Paper : CCAMLR Science, Volume 3 (CCAMLR Science, Volume 3) : 31–54 : Auteur(s): Constable, A. and W.K. de la Mare

8. Notothenia (P.) guntheri stock status and TAC estimation in the area of Shag Rocks (Subarea 48.3)

   -1987/88 were used to analyse N. guntheri stock status. On the basis of these data using VPA method with ... commercially taken age groups (2-4 years); (b) Fishing intensity in the predicted period is at the level of ... . guntheri stock status. On the basis of these data using V P A method with different adjustments stock ... age groups (2-4 years); ( b) Fishing intensity in the predicted period is at the level of 1987/88 ... O-Ba 10. reOprH5I OCo6H 3Toro BH,l(a 3a 20 JIeT perYJI5IpHO npoBO,l(HMbIX 3,l(eCb COBeTCKHX H ... patioHe CKaJI IIIar )l{eJITOn epKa 5IBJI5IeTC5I ,l(OMHHHPYIOIQHM BH,l(OM H ee qHCJIeHHOCTb 3,l(eCb OqeHb ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/5 – Part II (Selected Scientific Papers, SC-CAMLR-SSP/5 – Part II) : 53-68 : Auteur(s): Shust, K. and R. Borodin

9. Myctophids in the diet of Antarctic predators

   diets. Early studies on food and feeding ecology of Antarctic top predators were summarised in ... Crozet Islands area) in comparison with other fish. Myctophids ofthe genus Gymnoscopelus were identified ... , with E. superba comprising 52.2%. D. eleginoides, the species which primarily feeds on fish, has 12.0 ... % of myctophids in its diet in Kosmonavtov Sea with the remaining fish food being mainly ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/8 (Selected Scientific Papers, SC-CAMLR-SSP/8) : 335–368 : Auteur(s): Sabourenkov, E.

10. Reproduction of the mackerel icefish (Champsocephalus gunnari) and its implications for fisheries management in the Atlantic sector of the Southern Ocean

    March to the end of each year's meeting of CCAMLR which is usually held in late October or early ...

    Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/6 (Selected Scientific Papers, SC-CAMLR-SSP/6) : 51–68 : Auteur(s): Kock, K.-H.

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